Important: The Automatic Transmission (A/T) Wiring Harness Check cannot be used for checking the automatic transmission fluid pressure (TFP) manual valve position switch circuit. Refer to Transmission Fluid Pressure Manual Valve Position Switch Resistance Check for those circuits.

1. Install the J 39775 jumper harness on the transmission 20-way connector.
2. Using the J 39200 digital multimeter (DMM), and a J 35616-A connector test adapter kit , measure the resistance between terminals A and E (1-2 shift solenoid valve).

Is the resistance within the values indicated?

19-24ohms @ 20°C (68°F)

24-31ohms @ 100°C

(212°F)

Go to Step 3

Go to Step 2

1. Disconnect the 1-2 shift solenoid (SS) valve from the automatic transmission (A/T) wiring harness assembly.
2. Using the J 39200 DMM, measure the resistance of the 1-2 SS valve.

Is the resistance within the values indicated?

19-24ohms @ 20°C (68°F)

24-31ohms @ 100°C

(212°F)

Go to Step 12

Go to Step 14

Measure the resistance between terminals B and E (2-3 shift solenoid valve).

Is the resistance within the values indicated?

19-24ohms @ 20°C (68°F)

24-31ohms @ 100°C

(212°F)

Go to Step 5

Go to Step 4

1. Disconnect the 2-3 shift solenoid (SS) valve from the A/T wiring harness assembly.
2. Using the J 39200 DMM, measure the resistance of the 2-3 SS valve.

Is the resistance within the values indicated?

19-24ohms @ 20°C (68°F)

24-31ohms @ 100°C

(212°F)

Go to Step 12

Go to Step 14

Measure the resistance between terminals S and E (torque converter clutch pulse width modulation solenoid valve).

Is the resistance within the values indicated?

10-11ohms @ 20°C (68°F)

13-15ohms @ 100°C (212°F)

Go to Step 7

Go to Step 6

1. Disconnect the torque converter clutch pulse width modulation (TCC PWM) solenoid valve from the A/T wiring harness assembly.
2. Using the J 39200 DMM, measure the resistance of the TCC PWM solenoid valve.

Is the resistance within the values indicated?

10-11ohms @ 20°C (68°F)

13-15ohms @ 100°C (212°F)

Go to Step 12

Go to Step 14

Measure the resistance between terminals C and D (pressure control solenoid valve).

Is the resistance within the values indicated?

3-5ohms @ 20°C (68°F)

4-7ohms @ 100°C (212°F)

Go to Step 9

Go to Step 8

1. Disconnect the pressure control (PC) solenoid valve from the A/T wiring harness assembly.
2. Using the J 39200 DMM, measure the resistance of the PC solenoid valve.

Is the resistance within the values indicated?

3-5ohms @ 20°C (68°F)

4-7ohms @ 100°C (212°F)

Go to Step 12

Go to Step 14

Measure the resistance between terminals L and M (transmission fluid temperature sensor).

Is the resistance within the values indicated?

3333-3689ohms @ 20°C (68°F)

167-189ohms @ 100°C (212°F)

Go to Step 10

Go to Step 12

Measure the resistance from terminals A, B, C, D, E, L, M, N, P, R and S of the A/T wiring harness assembly at the transmission 20-way connector, to the transmission case.

Is the resistance measured greater than the value indicated?

250kohms

System OK

Go to Step 11

1. Disconnect the A/T wiring harness assembly from all the components.
2. Measure the resistance from all the components terminals to the transmission case.

Is the resistance measured greater than the value indicated?

250kohms

Go to Step 12

Go to Step 14

Inspect for high resistance or a shorted condition:

Was high resistance or a shorted condition found?

--

Go to Step 1

Go to Step 13

Replace the A/T wiring harness assembly.

Refer to Wiring Harness Replacement.

Is the replacement complete?

--

Go to step 1

--

Replace the faulty component.

Is the replacement complete?

--

Go to step 1

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